Brain stem and spinal cord Flashcards
Name cranial nerve nuclei found in midbrain
III (oculomotor) and IV (trochlear)
Name cranial nerve nuclei found in pons.
V (trigeminal, motor and sensory), VI (abducens), VII
(facial) & VIII (vestibulocochlear)
Name cranial nerve nuclei found in medulla.
IX (glossopharyngeal),
X (vagus), XI (accessory), XII (hypoglossal)
What distinct about spinal dura mater?
Does not attach to vertebrae
Collection of nerve roots at inferior end of vertebral canal
Cauda equina
cauda medullaries
What is the innest protection of the spinal
piameter
Which of the following tracts is responsible for the voluntary control of limb movements?
a) Spinothalamic tract
b) Corticospinal tract
c) Dorsal columns-medial lemniscus pathway
d) Spinocerebellar tract
Answer: b) Corticospinal tract
Which cranial nerve originates from the brainstem and controls the muscles of the tongue?
a) Facial nerve
b) Glossopharyngeal nerve
c) Hypoglossal nerve
d) Vagus nerve
Answer: c) Hypoglossal nerve
The midbrain, pons, and medulla oblongata are collectively referred to as:
a) Cerebrum
b) Cerebellum
c) Brainstem
d) Limbic system
Answer: c) Brainstem
Which of the following is not a function of the spinal cord?
a) Conduction of nerve impulses
b) Reflex actions
c) Storage of cerebrospinal fluid
d) Integration of sensory information
Answer: c) Storage of cerebrospinal fluid
The dorsal columns-medial lemniscus pathway is responsible for the transmission of:
a) Pain and temperature sensations
b) Proprioceptive and touch sensations
c) Motor impulses
d) Sympathetic signals
Answer: b) Proprioceptive and touch sensations
The corticospinal tract is a part of which division of the nervous system?
a) Central nervous system
b) Peripheral nervous system
c) Autonomic nervous system
d) Enteric nervous system
Answer: a) Central nervous system
Which of the following cranial nerves originates from the medulla oblongata?
a) Olfactory nerve
b) Optic nerve
c) Vestibulocochlear nerve
d) Hypoglossal nerve
Answer: d) Hypoglossal nerve
The reticular formation is a network of nuclei within which part of the brainstem?
a) Midbrain
b) Pons
c) Medulla oblongata
d) Both a and b
Answer: d) Both a and b
